2 see copyright notice in squirrel.h
4 #include "sqpcheader.h"
10 SQClass::SQClass(SQSharedState *ss,SQClass *base)
16 _metamethods.resize(MT_LAST); //size it to max size
18 _defaultvalues.copy(base->_defaultvalues);
19 _methods.copy(base->_methods);
20 _metamethods.copy(base->_metamethods);
23 _members = base?base->_members->Clone() : SQTable::Create(ss,0);
24 __ObjAddRef(_members);
27 ADD_TO_CHAIN(&_sharedstate->_gc_chain, this);
30 void SQClass::Finalize() {
32 _defaultvalues.resize(0);
34 _metamethods.resize(0);
35 __ObjRelease(_members);
43 REMOVE_FROM_CHAIN(&_sharedstate->_gc_chain, this);
47 bool SQClass::NewSlot(SQSharedState *ss,const SQObjectPtr &key,const SQObjectPtr &val,bool bstatic)
51 return false; //the class already has an instance so cannot be modified
52 if(_members->Get(key,temp) && _isfield(temp)) //overrides the default value
54 _defaultvalues[_member_idx(temp)].val = val;
57 if(type(val) == OT_CLOSURE || type(val) == OT_NATIVECLOSURE || bstatic) {
59 if((type(val) == OT_CLOSURE || type(val) == OT_NATIVECLOSURE) &&
60 (mmidx = ss->GetMetaMethodIdxByName(key)) != -1) {
61 _metamethods[mmidx] = val;
64 if(type(temp) == OT_NULL) {
67 _members->NewSlot(key,SQObjectPtr(_make_method_idx(_methods.size())));
68 _methods.push_back(m);
71 _methods[_member_idx(temp)].val = val;
78 _members->NewSlot(key,SQObjectPtr(_make_field_idx(_defaultvalues.size())));
79 _defaultvalues.push_back(m);
83 SQInstance *SQClass::CreateInstance()
86 return SQInstance::Create(_opt_ss(this),this);
89 SQInteger SQClass::Next(const SQObjectPtr &refpos, SQObjectPtr &outkey, SQObjectPtr &outval)
92 SQInteger idx = _members->Next(false,refpos,outkey,oval);
95 outval = _methods[_member_idx(oval)].val;
98 SQObjectPtr &o = _defaultvalues[_member_idx(oval)].val;
105 bool SQClass::SetAttributes(const SQObjectPtr &key,const SQObjectPtr &val)
108 if(_members->Get(key,idx)) {
110 _defaultvalues[_member_idx(idx)].attrs = val;
112 _methods[_member_idx(idx)].attrs = val;
118 bool SQClass::GetAttributes(const SQObjectPtr &key,SQObjectPtr &outval)
121 if(_members->Get(key,idx)) {
122 outval = (_isfield(idx)?_defaultvalues[_member_idx(idx)].attrs:_methods[_member_idx(idx)].attrs);
128 ///////////////////////////////////////////////////////////////////////
129 void SQInstance::Init(SQSharedState *ss)
134 _delegate = _class->_members;
136 ADD_TO_CHAIN(&_sharedstate->_gc_chain, this);
139 SQInstance::SQInstance(SQSharedState *ss, SQClass *c, SQInteger memsize)
143 SQUnsignedInteger nvalues = _class->_defaultvalues.size();
144 for(SQUnsignedInteger n = 0; n < nvalues; n++) {
145 new (&_values[n]) SQObjectPtr(_class->_defaultvalues[n].val);
150 SQInstance::SQInstance(SQSharedState *ss, SQInstance *i, SQInteger memsize)
154 SQUnsignedInteger nvalues = _class->_defaultvalues.size();
155 for(SQUnsignedInteger n = 0; n < nvalues; n++) {
156 new (&_values[n]) SQObjectPtr(i->_values[n]);
161 void SQInstance::Finalize()
163 SQUnsignedInteger nvalues = _class->_defaultvalues.size();
164 __ObjRelease(_class);
165 for(SQUnsignedInteger i = 0; i < nvalues; i++) {
170 SQInstance::~SQInstance()
172 REMOVE_FROM_CHAIN(&_sharedstate->_gc_chain, this);
173 if(_class){ Finalize(); } //if _class is null it was already finalized by the GC
176 bool SQInstance::GetMetaMethod(SQVM *v,SQMetaMethod mm,SQObjectPtr &res)
178 if(type(_class->_metamethods[mm]) != OT_NULL) {
179 res = _class->_metamethods[mm];
185 bool SQInstance::InstanceOf(SQClass *trg)
187 SQClass *parent = _class;
188 while(parent != NULL) {
191 parent = parent->_base;